WSM Piston Kit - Yamaha 660 - +.50 mm 50-544-05K Youth Split Personality Hoodie External suede panel located on

External suede panel located on calf area of boot to provide grip against bike

Molded knuckle protection air intakes and exhaust ports for improved hand ventilation

Stretch elbow accordion helps movement and comfort on the bike

Now you can get the tools to program it

WSM Piston Kit - Yamaha 660 - +.50 mm 50-544-05K Youth Split Personality Hoodie External suede panel located onQuality and construction that meets or exceeds OEM Feature improved E clip design Contain piston, rings, pin and clips Additional rings available separately Order one per cylinder Skirts have a nonabrasive, expansion retarding MOS2 coating to reduce heat and friction for added power and longevity MOS2 coating actually draws heat through piston walls and out the bottom Specially hardened tops add strength to ring grooves